Concrete-mixing apparatus.



c. w. LEvALLEY. n CONCRETE MIXING APPARATUS.

APPLICATION FILED DCT. I9. |912- 1,230,731.: A. PatentedJune 19, 1917.

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UNTED ,STATES PATENT f Ayumi@ ma oetobai- 1s, 1912. seria; mi. 726,695!

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Be it known thatl, C

whenadjutedtc'one positin to receive, tha

' iqxmsthe services of two menftgshiipthe i illustrated in Fig. 4, parts of the machin 'PEER W. Lli-` vm?, al citizen of th United States, resid ing. at Milwaukee, 'in :theygcountyof 'Milwuu.--

tending weliint the drum', a large arjmiixn' l being braken away." g f Eig. 6 is zi s ectiunal view'il'luszfrating pa. of the-automatic sto mechanism.

Fig. fis a. detail race View of the cfam poyedfin the st op mechanism. i y .i

In th drawing A designates this rotat drum of' nconcrt mixing machine. It 151i Edl mto the @zink grins rf st whim. the chti hmmm rsitonfm- Se and.; control #he wmv suimlyf U illustrating one form of my invention, 6 designates a horizontal shaft supported in the -upper part of the frameD and connected with the countershaft E by a belt 74 splin'ed to the shaft -6 and arranged to be adjusted either to a' position intermediate between the clutch members 10 10. and out of engagement with' both of them, or into enga ementwithlone, or the other of the clutc members of the bevel pinions. The 'shiftlever 1 to which is connecteda shifting rod 13 extending toward the front ofthe a paratus, where the attendant usually stan' s.

The l'shifting clutch member 11 is provided with a pair of collars 14, 14: between which is'arran'ged :cam 15 at the end of the rock shaft 2. This cam is so shaped and disposed that when the shaft has been 'turned to adjust the chute F to discharging 'positiom 'the cam comes into' engagement with one of the collars 14 and moves the 'shifting' clutch member into its mterme.

diate position, thus sto ping the chute-operating apparatus. en .the shaft 2 -is turned in the opposite direction to tilt the chute 'inward and-has. been turned suiiiciently far-to bring the chute to its extreme position of inclination in' this direction, the

- cam engages with the other collar and operates to disengage Vthe clutch members and t bring the parts to rest. The driving mechanismdescribed is thus automatically sto ped whenever 'the chute reaches its limit o adjustmengwhicliever wa it be moved, and

i 'thus the attendant is re ieved ofthe neces.

sity'of'fwatching the discharge l end of the apparatus "after ,ha ving` once started the movement of the'g discharge chute.

of the cano 15 with, aroller v16 for the pur- 'pose of reducin friction.

The form- Ao illustrated in'Figs. 4 and 5 diifers from that shown in Fgs. 1, 2 andif 'inthat the shaf-t .1v1- amt samen v thereountershaft.

upon which therbevelipinionsf are supported is vertically .diiosed instead lof being horizontal. Such aft is desigllted 6 and carries ,at its lower end a bevel wheel bevel-pinion 18.11pen ar to the co on parte illus- 'i' trtedin Figs. 1, 2 an 3, ang already described,that 'a further description of them to be unnecessary.'. .y

clutch memberll isu operated by a apparatus which I have `The other parts of' japai-atus shown in 4 and 5 'are 'so sim What I claim is 1. The combination with a receptacle and a tumble chute therefor, of a rock-shaft con:

nectedl with the chute for operatin it, power-driven mechanism connected wit the said shaft for oscillating it, including a manually operated clutch adapted to occupy a neutral position disconnecting the ower mechanism from the oscillating lsha' but "rivesat its limit of inclination in either direction. y

2. The combination with receptacle and a tiltable discharge chute therefor of a rock shaft connected lwith the chute for tilting it, a gear wheel carried by the shaft, loosely mounted gear pinions engagin with the said gear wheel, a power-driven s aft, clutch mechanism under the control of an attendant forconnecting one or the 'otherof the said gear pinions with the power-driven shaft, and adapted to occupy a neutral position whereby the-,power shaft is discon nected from both the said gear.- iiiions, and means carried by the rock. sha that operates the chute for shifting-'the clutch mechanism into its-neutral position whenever the.

chute is inclined to the desired degree'in either direction,` y 3. The combinationlwith receptacle anda discharge chute therefor, of a -rock shaft connected with the .chute for tilting dit, a

bevel wheel upon the shaft, ahorizontallyv mounted power-driven shaft, a pair 'of bevel pinions loosely mounted uponv the-powerdriven shaft engagingwith thebevelwheel at diametrgeelly' clutch. member, sp tievpower, 'driven Shaft arranged; between"tha-:paensend-h5 adapted 'j to engage eitherfone or the otherv of them erV topcupyfafneutral `'posi-v I prefer-,to provide. the toe cr active end o points, a

tion between them5'shifting devices under' i i thejcontrol ofthe attendant for operatin the said clutchy member', and a cam carrie by the rock shaft that operates the chute for automatically "disengaging the. clutch; member from the-pinion with which it was en` Agaged and movingitinto its vneutral posil ,tion, vwhenever the chute reaches the desired Ve1.. A The combination with a receptacle I and limit -of adjustment.'

'ai tilt'ab discharge vchiitethe'refor, ofa rock-sha connected with .the chute for. tilt- -ing it, power-driven meansA fortively wol,

1,230,781. i i s so ns to drive the shnftrpositively in either direction, eccentric, automatic, clutchouting .moons supported directly by t e said rock-shaft arrnlged to bring the clutch 1 to `neutral position sconnecting the rock-` shaft from `the source of power whenever the chute ruches `the desired limit of movement ineither direction, and manuolly controlled cioviceai`A for movin the dutch lic- \'ond the positions to whici it is moved by, 1J

the said automatic shifting means.

CHRISTQPHER W. LEVALLEY.

Vitnesses: fof' W. C. Fun,

W. C. SARGnN'r. 

